Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"external cavities"”.
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Tailoring the emission of stripe-array diode lasers with external cavities to enable nonlinear frequency conversion
… stripe-arrays to find new concepts to realize an external synchronization of the emitters. The aim was to achieve stable longitudinal and transversal single mode operation with high output powers giving a brightness sufficient for efficient nonlinear frequency conversion. For this purpose a …
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Femtosecond pulse generation in surface-emitting semiconductor lasers
… in mode-locked optically pumped vertical external-cavity surface-emitting lasers (VECSELs). Continuous wave VECSELs were first designed as a type of semiconductor laser capable of producing high output power in near transform-limited beams. Optical pumping allows the output power of the …
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Double optical feedback and PT-symmetry breaking induced nonlinear dynamics in semiconductor lasers
… subjects the laser to optical feedback from two external cavities (or two loops), wherein each cavity contains a spectral filter. Using two filtered optical feedbacks, we experimentally demonstrate the ability to elicit and control unique dynamics in the optical emission frequency (wavelength) of …
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Computational Modelling of Fluid and Ion Transport in the Epithelial Cell
… fluid and solute transport between interior and external cavities. Dysregulation results in abnormal fluid secretion rates, leading to disease. We developed a mathematical model of a generic epithelial cell to simulate these transport processes. This system can be adapted to model transport across …
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The Design of Aspirated Compressor Bleed
… slot in the compressor casing, leading to external cavities. Aspiration refers to a form of flow control that utilises small holes for targeted suction within the compressor flow path. This thesis investigates the performance of aspirated compressor stators as part of the compressor bleed …